{"id":"CVE-2026-111274","summary":"unarr through 1.1.1 Heap Out-of-Bounds Read via zip_parse_extra_fields","details":"unarr through 1.1.1 contains a heap-based out-of-bounds read in zip_parse_extra_fields() in zip/parse-zip.c due to an incorrect ZIP64 extra field length check. Attackers can supply a crafted ZIP archive with 0xFFFFFFFF sentinel values and a truncated ZIP64 record to read past the heap buffer and crash the process.","modified":"2026-10-21T02:55:10.520849808Z","published":"2026-10-15T21:43:20.415Z","database_specific":{"cwe_ids":["CWE-125"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111274.json","cna_assigner":"VulnCheck"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111274.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-111274"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/unarr-through-1.1.1-heap-out-of-bounds-read-via-zip-parse-extra-fields"},{"type":"PACKAGE","url":"https://github.com/selmf/unarr"},{"type":"ARTICLE","url":"https://github.com/selmf/unarr/blob/b211040df83dee513362cdeb9bd87afa26fd5e38/zip/parse-zip.c#L48-L72"},{"type":"ARTICLE","url":"https://hackmd.io/@haind-pwn/unarr-tar-zip-oob"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/selmf/unarr","events":[{"introduced":"0"},{"last_affected":"b211040df83dee513362cdeb9bd87afa26fd5e38"}],"database_specific":{"extracted_events":[{"strategy":"StandardRange","range":[{"introduced":"0"},{"last_affected":"1.1.1"}],"source":"AFFECTED_FIELD"},{"range":[{"introduced":"0"},{"last_affected":"1.1.1"}],"source":"DESCRIPTION"}]}}],"versions":["v1.1.1","v1.1.0","v1.1.0.beta1","v1.0.1","v1.0.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-111274.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"}]}